International Journal of Precision Engineering and Manufacturing

Korean Society for Precision Engineering (한국정밀공학회)
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Effects of Contact Conditions on the Connector Electrical Resistance of Direct Current Circuits

  • Kim, Young-Tae (Graduate School of Mechanical Engineering, Yonsei University) ;
  • Sung, In-Ha (Graduate School of Mechanical Engineering, Yonsei University) ;
  • Kim, Jin-San (Graduate School of Mechanical Engineering, Yonsei University) ;
  • Kim, Dae-Eun (School of Mechanical Engineering, Yonsei University)
  • Published : 2004.07.01
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Abstract

Electric contacts serve the purpose of transmitting electric signals across two conducting components. In this paper, the effects of contact conditions such as surface roughness, oxidation, and contamination were investigated with respect to electrical resistance variation of a connector in a direct current circuit. Such change in the electrical resistance is particularly important for low power circuits. The experimental results showed that compared with the effects of contact surface scratch or oxidation, the effect of contamination on the resistance variation was the most significant. In order to minimize failure due to electrical resistance change at the contact region, proper sealing to prevent contamination from entering the interface is needed.

Keywords

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